all in all adverb 3noun 1 adverb3 •Altogether: with everything included, with all factors or parts having been added up.There were twenty absentees all in all. •All things considered.All in all, it's not a bad little restaurant. •(no longer used) Altogether, wholly.And I perceived no touch of change, No hint of death in all his frame, But found him all in all the same, […] — 1850 noun1 •Everything that matters; the only thing of importance.[…] to realize, by constant faith, the all-sufficiency of his redeeming power and love — to make him all his salvation and all his desire, the Alpha and Omega of all his hope, his all in all. — 1822